Mosquitto broker can be easily deployed using Docker compose file shown below. In the example below, MQTT broker listens to the ports 1883 (unecrypted) and 8883 (encrypted SSL).

Note

Compose file below declares two volumes (config and data) to persistantly store Mosquitto configuration and data.

version: "3.8"
services:
  mosquitto-esp32:
    image: eclipse-mosquitto:latest
    volumes:
      - /srv/dev-disk-by-label/docker/volumes/mosquitto/config:/mosquitto/config
      - /srv/dev-disk-by-label/docker/volumes/mosquitto/data:/mosquitto/data
    networks:
      - IoT
    ports:
      - 1883:1883
      - 8883:8883
      - 9001:9001
    restart: unless-stopped
networks:
  IoT:
    external: true

mosquitto.conf

``` text ## List ports listen to listener 1883 listener 8883

Certificates and keys issued for local domain 192.168.10.16

cafile /mosquitto/config/certs/esp32_ca.crt certfile /mosquitto/config/certs/esp32.crt keyfile /mosquitto/config/certs/esp32.key

allow_anonymous true persistence true persistence_location /srv/dev-disk-by-label/docker/columes/mosquitto/data/